1: <pre>
2: GNU GENERAL PUBLIC LICENSE
3: Version 2, June 1991
4:
5: Copyright (C) 1989, 1991 Free Software Foundation, Inc.
6: 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
7: Everyone is permitted to copy and distribute verbatim copies
8: of this license document, but changing it is not allowed.
9:
10: Preamble
11:
12: The licenses for most software are designed to take away your
13: freedom to share and change it. By contrast, the GNU General Public
14: License is intended to guarantee your freedom to share and change free
15: software--to make sure the software is free for all its users. This
16: General Public License applies to most of the Free Software
17: Foundation's software and to any other program whose authors commit to
18: using it. (Some other Free Software Foundation software is covered by
19: the GNU Library General Public License instead.) You can apply it to
20: your programs, too.
21:
22: When we speak of free software, we are referring to freedom, not
23: price. Our General Public Licenses are designed to make sure that you
24: have the freedom to distribute copies of free software (and charge for
25: this service if you wish), that you receive source code or can get it
26: if you want it, that you can change the software or use pieces of it
27: in new free programs; and that you know you can do these things.
28:
29: To protect your rights, we need to make restrictions that forbid
30: anyone to deny you these rights or to ask you to surrender the rights.
31: These restrictions translate to certain responsibilities for you if you
32: distribute copies of the software, or if you modify it.
33:
34: For example, if you distribute copies of such a program, whether
35: gratis or for a fee, you must give the recipients all the rights that
36: you have. You must make sure that they, too, receive or can get the
37: source code. And you must show them these terms so they know their
38: rights.
39:
40: We protect your rights with two steps: (1) copyright the software, and
41: (2) offer you this license which gives you legal permission to copy,
42: distribute and/or modify the software.
43:
44: Also, for each author's protection and ours, we want to make certain
45: that everyone understands that there is no warranty for this free
46: software. If the software is modified by someone else and passed on, we
47: want its recipients to know that what they have is not the original, so
48: that any problems introduced by others will not reflect on the original
49: authors' reputations.
50:
51: Finally, any free program is threatened constantly by software
52: patents. We wish to avoid the danger that redistributors of a free
53: program will individually obtain patent licenses, in effect making the
54: program proprietary. To prevent this, we have made it clear that any
55: patent must be licensed for everyone's free use or not licensed at all.
56:
57: The precise terms and conditions for copying, distribution and
58: modification follow.
59:
60: GNU GENERAL PUBLIC LICENSE
61: TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
62:
63: 0. This License applies to any program or other work which contains
64: a notice placed by the copyright holder saying it may be distributed
65: under the terms of this General Public License. The "Program", below,
66: refers to any such program or work, and a "work based on the Program"
67: means either the Program or any derivative work under copyright law:
68: that is to say, a work containing the Program or a portion of it,
69: either verbatim or with modifications and/or translated into another
70: language. (Hereinafter, translation is included without limitation in
71: the term "modification".) Each licensee is addressed as "you".
72:
73: Activities other than copying, distribution and modification are not
74: covered by this License; they are outside its scope. The act of
75: running the Program is not restricted, and the output from the Program
76: is covered only if its contents constitute a work based on the
77: Program (independent of having been made by running the Program).
78: Whether that is true depends on what the Program does.
79:
80: 1. You may copy and distribute verbatim copies of the Program's
81: source code as you receive it, in any medium, provided that you
82: conspicuously and appropriately publish on each copy an appropriate
83: copyright notice and disclaimer of warranty; keep intact all the
84: notices that refer to this License and to the absence of any warranty;
85: and give any other recipients of the Program a copy of this License
86: along with the Program.
87:
88: You may charge a fee for the physical act of transferring a copy, and
89: you may at your option offer warranty protection in exchange for a fee.
90:
91: 2. You may modify your copy or copies of the Program or any portion
92: of it, thus forming a work based on the Program, and copy and
93: distribute such modifications or work under the terms of Section 1
94: above, provided that you also meet all of these conditions:
95:
96: a) You must cause the modified files to carry prominent notices
97: stating that you changed the files and the date of any change.
98:
99: b) You must cause any work that you distribute or publish, that in
100: whole or in part contains or is derived from the Program or any
101: part thereof, to be licensed as a whole at no charge to all third
102: parties under the terms of this License.
103:
104: c) If the modified program normally reads commands interactively
105: when run, you must cause it, when started running for such
106: interactive use in the most ordinary way, to print or display an
107: announcement including an appropriate copyright notice and a
108: notice that there is no warranty (or else, saying that you provide
109: a warranty) and that users may redistribute the program under
110: these conditions, and telling the user how to view a copy of this
111: License. (Exception: if the Program itself is interactive but
112: does not normally print such an announcement, your work based on
113: the Program is not required to print an announcement.)
114:
115: These requirements apply to the modified work as a whole. If
116: identifiable sections of that work are not derived from the Program,
117: and can be reasonably considered independent and separate works in
118: themselves, then this License, and its terms, do not apply to those
119: sections when you distribute them as separate works. But when you
120: distribute the same sections as part of a whole which is a work based
121: on the Program, the distribution of the whole must be on the terms of
122: this License, whose permissions for other licensees extend to the
123: entire whole, and thus to each and every part regardless of who wrote it.
124:
125: Thus, it is not the intent of this section to claim rights or contest
126: your rights to work written entirely by you; rather, the intent is to
127: exercise the right to control the distribution of derivative or
128: collective works based on the Program.
129:
130: In addition, mere aggregation of another work not based on the Program
131: with the Program (or with a work based on the Program) on a volume of
132: a storage or distribution medium does not bring the other work under
133: the scope of this License.
134:
135: 3. You may copy and distribute the Program (or a work based on it,
136: under Section 2) in object code or executable form under the terms of
137: Sections 1 and 2 above provided that you also do one of the following:
138:
139: a) Accompany it with the complete corresponding machine-readable
140: source code, which must be distributed under the terms of Sections
141: 1 and 2 above on a medium customarily used for software interchange; or,
142:
143: b) Accompany it with a written offer, valid for at least three
144: years, to give any third party, for a charge no more than your
145: cost of physically performing source distribution, a complete
146: machine-readable copy of the corresponding source code, to be
147: distributed under the terms of Sections 1 and 2 above on a medium
148: customarily used for software interchange; or,
149:
150: c) Accompany it with the information you received as to the offer
151: to distribute corresponding source code. (This alternative is
152: allowed only for noncommercial distribution and only if you
153: received the program in object code or executable form with such
154: an offer, in accord with Subsection b above.)
155:
156: The source code for a work means the preferred form of the work for
157: making modifications to it. For an executable work, complete source
158: code means all the source code for all modules it contains, plus any
159: associated interface definition files, plus the scripts used to
160: control compilation and installation of the executable. However, as a
161: special exception, the source code distributed need not include
162: anything that is normally distributed (in either source or binary
163: form) with the major components (compiler, kernel, and so on) of the
164: operating system on which the executable runs, unless that component
165: itself accompanies the executable.
166:
167: If distribution of executable or object code is made by offering
168: access to copy from a designated place, then offering equivalent
169: access to copy the source code from the same place counts as
170: distribution of the source code, even though third parties are not
171: compelled to copy the source along with the object code.
172:
173: 4. You may not copy, modify, sublicense, or distribute the Program
174: except as expressly provided under this License. Any attempt
175: otherwise to copy, modify, sublicense or distribute the Program is
176: void, and will automatically terminate your rights under this License.
177: However, parties who have received copies, or rights, from you under
178: this License will not have their licenses terminated so long as such
179: parties remain in full compliance.
180:
181: 5. You are not required to accept this License, since you have not
182: signed it. However, nothing else grants you permission to modify or
183: distribute the Program or its derivative works. These actions are
184: prohibited by law if you do not accept this License. Therefore, by
185: modifying or distributing the Program (or any work based on the
186: Program), you indicate your acceptance of this License to do so, and
187: all its terms and conditions for copying, distributing or modifying
188: the Program or works based on it.
189:
190: 6. Each time you redistribute the Program (or any work based on the
191: Program), the recipient automatically receives a license from the
192: original licensor to copy, distribute or modify the Program subject to
193: these terms and conditions. You may not impose any further
194: restrictions on the recipients' exercise of the rights granted herein.
195: You are not responsible for enforcing compliance by third parties to
196: this License.
197:
198: 7. If, as a consequence of a court judgment or allegation of patent
199: infringement or for any other reason (not limited to patent issues),
200: conditions are imposed on you (whether by court order, agreement or
201: otherwise) that contradict the conditions of this License, they do not
202: excuse you from the conditions of this License. If you cannot
203: distribute so as to satisfy simultaneously your obligations under this
204: License and any other pertinent obligations, then as a consequence you
205: may not distribute the Program at all. For example, if a patent
206: license would not permit royalty-free redistribution of the Program by
207: all those who receive copies directly or indirectly through you, then
208: the only way you could satisfy both it and this License would be to
209: refrain entirely from distribution of the Program.
210:
211: If any portion of this section is held invalid or unenforceable under
212: any particular circumstance, the balance of the section is intended to
213: apply and the section as a whole is intended to apply in other
214: circumstances.
215:
216: It is not the purpose of this section to induce you to infringe any
217: patents or other property right claims or to contest validity of any
218: such claims; this section has the sole purpose of protecting the
219: integrity of the free software distribution system, which is
220: implemented by public license practices. Many people have made
221: generous contributions to the wide range of software distributed
222: through that system in reliance on consistent application of that
223: system; it is up to the author/donor to decide if he or she is willing
224: to distribute software through any other system and a licensee cannot
225: impose that choice.
226:
227: This section is intended to make thoroughly clear what is believed to
228: be a consequence of the rest of this License.
229:
230: 8. If the distribution and/or use of the Program is restricted in
231: certain countries either by patents or by copyrighted interfaces, the
232: original copyright holder who places the Program under this License
233: may add an explicit geographical distribution limitation excluding
234: those countries, so that distribution is permitted only in or among
235: countries not thus excluded. In such case, this License incorporates
236: the limitation as if written in the body of this License.
237:
238: 9. The Free Software Foundation may publish revised and/or new versions
239: of the General Public License from time to time. Such new versions will
240: be similar in spirit to the present version, but may differ in detail to
241: address new problems or concerns.
242:
243: Each version is given a distinguishing version number. If the Program
244: specifies a version number of this License which applies to it and "any
245: later version", you have the option of following the terms and conditions
246: either of that version or of any later version published by the Free
247: Software Foundation. If the Program does not specify a version number of
248: this License, you may choose any version ever published by the Free Software
249: Foundation.
250:
251: 10. If you wish to incorporate parts of the Program into other free
252: programs whose distribution conditions are different, write to the author
253: to ask for permission. For software which is copyrighted by the Free
254: Software Foundation, write to the Free Software Foundation; we sometimes
255: make exceptions for this. Our decision will be guided by the two goals
256: of preserving the free status of all derivatives of our free software and
257: of promoting the sharing and reuse of software generally.
258:
259: NO WARRANTY
260:
261: 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
262: FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
263: OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
264: PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
265: OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
266: MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
267: TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
268: PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
269: REPAIR OR CORRECTION.
270:
271: 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
272: WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
273: REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
274: INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
275: OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
276: TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
277: YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
278: PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
279: POSSIBILITY OF SUCH DAMAGES.
280:
281: END OF TERMS AND CONDITIONS
282:
283: How to Apply These Terms to Your New Programs
284:
285: If you develop a new program, and you want it to be of the greatest
286: possible use to the public, the best way to achieve this is to make it
287: free software which everyone can redistribute and change under these terms.
288:
289: To do so, attach the following notices to the program. It is safest
290: to attach them to the start of each source file to most effectively
291: convey the exclusion of warranty; and each file should have at least
292: the "copyright" line and a pointer to where the full notice is found.
293:
294: <one line to give the program's name and a brief idea of what it does.>
295: Copyright (C) <year> <name of author>
296:
297: This program is free software; you can redistribute it and/or modify
298: it under the terms of the GNU General Public License as published by
299: the Free Software Foundation; either version 2 of the License, or
300: (at your option) any later version.
301:
302: This program is distributed in the hope that it will be useful,
303: but WITHOUT ANY WARRANTY; without even the implied warranty of
304: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
305: GNU General Public License for more details.
306:
307: You should have received a copy of the GNU General Public License
308: along with this program; if not, write to the Free Software
309: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
310:
311:
312: Also add information on how to contact you by electronic and paper mail.
313:
314: If the program is interactive, make it output a short notice like this
315: when it starts in an interactive mode:
316:
317: Gnomovision version 69, Copyright (C) year name of author
318: Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
319: This is free software, and you are welcome to redistribute it
320: under certain conditions; type `show c' for details.
321:
322: The hypothetical commands `show w' and `show c' should show the appropriate
323: parts of the General Public License. Of course, the commands you use may
324: be called something other than `show w' and `show c'; they could even be
325: mouse-clicks or menu items--whatever suits your program.
326:
327: You should also get your employer (if you work as a programmer) or your
328: school, if any, to sign a "copyright disclaimer" for the program, if
329: necessary. Here is a sample; alter the names:
330:
331: Yoyodyne, Inc., hereby disclaims all copyright interest in the program
332: `Gnomovision' (which makes passes at compilers) written by James Hacker.
333:
334: <signature of Ty Coon>, 1 April 1989
335: Ty Coon, President of Vice
336:
337: This General Public License does not permit incorporating your program into
338: proprietary programs. If your program is a subroutine library, you may
339: consider it more useful to permit linking proprietary applications with the
340: library. If this is what you want to do, use the GNU Library General
341: Public License instead of this License.
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